Fathogram
n. 回音测深仪纪录图, 水深图
🗣️ 情景例句
Work harder and practice more.
要更加努力地学习，更加勤奋地操练。
The Spring Festival lasts half a month until the Lantern Festival comes.
春节要持续半个月左右，直到无宵节来为止。
Do you know what they are?
你知道他们是干什么的吗？